Yamaha rd350 Nedir?
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Yamaha rd350 Nedir?
The Yamaha RD350 is a two-stroke motorcycle produced by Yamaha from 1973 to 1975. It evolved directly from the piston port (pre-reed valve intake tract), front drum-braked, five-speed Yamaha 350 cc “R5”.
The engine is an air-cooled, parallel twin, six-speed (in some markets, such as the UK, the first model was sold in five-speed form), reed valve-equipped intake tract two-stroke engine. The bike is usually referred to as a sport bike.
All models were equipped with “Autolube” automatic oil injection, relieving the user from the need to mix gasoline and two-stroke oil.
Rim sizes are 18″ WM2 (1.85″) front and 18″ WM3 (2.15″) rear, both being of chromed, wire spoked steel construction. In the UK, rim sizes were 1.60 front and 1.85 rear.
Brakes are: single front disc brake and a rear drum brake, a combination described by Cycle Magazine as the best in its class.
The frame dimensions of the street 350 are very similar to the Yamaha TZ 250 and TZ 350 series factory road race bikes, differing mainly in weight and front fork rake – the RD being ~27 degrees and the TZ being ~25 degrees. The frames appear similar, side by side, with the street frame adorned with many brackets for the street equipment. The weight difference is substantial though, with the street-going RD frame weighing almost twice as much as the “TZ” roadrace race frame.
The stock bike made 39 bhp (29 kW) (32 bhp (24 kW) at the back wheel) at 7500 rpm – very fast for the time. A contemporary of the RD is the Kawasaki H2 750cc Triple that produced 74 hp.
The 350 evolved into the more refined and cleaner running RD400C in 1976, the “D” and “E” in 77–78 and the final model, the white 1979 RD400F. World’s most favorite bike in the segment at that time
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Görsel Kaynağı: Wikimedia Commons
